Here are the best free online song key finder apps to find the key to any song in seconds.
These tools can be used to find the key for any melody in different genres such as Rock, Pop, Hip Hop, and more.
We have included several music key finders that will automatically detect the song key of any audio file. These are much easier than trying to find a song key manually.
All these music key finders are browser-based, so they will work on Windows, Mac, Linux, and mobile devices. Key finders are useful for all sorts of musicians. If you play a variety of styles, you can use a key finder to figure out what the key is of any song or piece.
Or if you are playing with other musicians and you don’t know what key they’re in. A key finder will help identify the key they’re using so that you can better harmonize with them.
Free Song Key Finder Apps
Instructions: Click the images below to visit each website.
- Get Song Key
- Tunebat Song Key & BPM Finder
- Song Key Finder
- Audio Keychain Music Key Finder
- Show Scale
- Name That Key
- Musical Scale Finder & Key Finder
- TL Song Key Finder
- Song & BPM
- Key Finder
1. Get Song Key
Get Song Key is a website that provides tools for finding the song key & BPM finders for songs. It is the one-stop-shop for all your music production needs.
The Key Finder tool can help you find key and tempo information for any song by simply dragging and dropping the audio file into the window.
The song key detection accuracy ranges from 70 to 95%, and that number increases if the relative keys are considered.
- Drag & Drop Audio Files
- Creates a Visual Graphic to Download
- MP3 Files Only
- Add Song Key Data to Mp3tag
- Upload Audio Files
2. Tunebat Song Key & BPM Finder
The Tunebat analyzer is a tool to find song keys and BPMs in seconds.
This is a useful tool for DJs wanting to learn harmonic mixing, producers looking to remix songs, and anyone who wants to learn more about music.
It also gives information about other information like Alt Key and tempo.
- Browser-Based App
- Algorithm Detection Algorithm
- Drag & Drop Interface
- Find BPM
- Find Alt Key
- Fast Service
- AI + Machine Learning
- Supports MP3, WAV, AAC, FLAC, OGG, M4A
- No File Limit Size
3. Song Key Finder
Song Key Finder analyzes your audio files to determine what key to play the song in. The online tool is easy to use and works directly from your web browser.
Song keys for multiple files can be obtained at once.
- Find Song Key & BPM
- Takes A Few Seconds
- Upload Audio Files
4. Audio Keychain Music Key Finder
AudioKeychain is a key finder. It helps people to identify the song and artist for which they are looking for the song keys.
Drop your audio tracks into the drop zone and hit the “Upload Tracks” button.
- Check Multiple Files at Once
- Supports MP3 & WAV Files
- 15MB File Size Limit
- Upload Audio Files
- Drag & Drop Interface
- Export Results
- Edit Track Data
5. Show Scale
You can use this great tool to determine the music scale (or key) for your piece.
To start the scale selector, select the piano notes. Choosing more notes will allow you to select notes more precisely.
- Automatic & Manual Modes
- Interactive Interface
6. Name That Key
The Name That Key tool makes it easy to find the chords of a song in a given key.
7. Musical Scale Finder & Key Finder
Scales and Chords is a website that helps you find the key of any song.
You can enter notes or chords. Your inputs will be matched with appropriate scales using this tool.
Founded by two musicians, the website is designed for musicians who don’t know what key their song is in.
8. TL Song Key Finder
TL Song Key Finder is a site that helps people find the key of a song. The site has an extensive database of songs and an easy-to-use interface.
9. Song & BPM
This website is designed to help people quickly and efficiently identify a song’s tempo, key, and duration.
This site allows users to enter the artist, song title, or genre of music they are searching for to find the exact tempo of the track.
In addition to finding a song’s BPM (beats per minute), Song & BPM aggregates related songs into recommended playlists that follow their chosen BPM, making it easy for DJs and producers to find beats and create mixes that flow together seamlessly.
By focusing solely on tempo matching and curating user-friendly interfaces, this website makes it easier than ever before for music lovers to discover high-quality tracks at just the right speed.
10. Key Finder
Key Finder is a simple key finder with a mission to simplify music-making. Designed for songwriters, musicians, and producers alike, the software allows you to identify a song’s key in a simplified and straightforward manner.
In addition, the software also allows users to upload their own files from different recording formats, including WAV and MP3.
To start key detection, enable the microphone in your web browser to find a song’s key. Or upload audio under the File Analysis tab.
What Is A Song Key Finder?
A song key finder is a tool that is used for finding the key of a song. Typically, a music key finder will work by playing a note and asking the user to identify the note.
The song key finder will then move up or down in semitones until it has found the key that the user identified.
A song key finder is used to find the song’s relative key.
This is helpful for musicians because this can give them an idea of what notes to play on their instrument in order to tune it to the same key as the song.
But there are several online key finders that will automatically detect a song key for you by uploading an audio file.
What Is The Key Of A Song?
Every song and composition has a key, which is why it is so important to the music. A song’s key includes several tonally related, or compatible, chords and tones.
Playing that group of scales produces a very melodic sound since it is based on major and minor scales.
The scale has 12 major and 12 minor keys. A key has a central note, the keynote is also called the root and the primary note in the song which often repeats.
Knowing a song key’s tonic chord is important for guitarists, pianists, and any musician.
How to Find a Song’s Key Online
- Visit https://getsongkey.com/tools/key-finder
- Drag an MP3 file to the window, or click the box to browse your computer for an audio file.
- The website will automatically process the audio and let you know the song key in under 20 seconds depending on your internet connection.
- You can click the download arrow to re-download the audio file you uploaded with the song key data added to the Mp3tag.
Finding the key of a song can be a daunting task, but with the help of these free music key finder tools, it can be done in just a few seconds.
Whether you’re looking for tracks with the same key signature, analyzing a specific song, or trying to create the perfect mashup with more than one key, these key detection and song analyzer tools are a great tool to have.
Knowing the key and BPM of a song is essential when it comes to creating compatible tracks and achieving a flawless mix.
With these tools, you’ll be able to easily find the key of any song and create a perfect harmony with tracks in the same key.
Overall, these free key finder tools are a must-have for any music producer, DJ, or musician looking to elevate their music production game.
Song Key Finders are great apps for musicians who need some help figuring out which key they should be played in.
We hope you find these music key finders helpful. These websites are great free options that let you find song keys online without installing any software.
If we missed any song key finder, please let us know in the comments.